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tracing: Replace the static global per_cpu arrays with allocated per_cpu

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The global and max-tr currently use static per_cpu arrays for the CPU data
descriptors. But in order to get new allocated trace_arrays, they need to
be allocated per_cpu arrays. Instead of using the static arrays, switch
the global and max-tr to use allocated data.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt
2012-08-06 16:24:11 -04:00
committed by Steven Rostedt
parent ccb469a198
commit a7603ff4b5
10 changed files with 80 additions and 62 deletions
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4
kernel/trace/trace_functions.c
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@@ -76,7 +76,7 @@ function_trace_call(unsigned long ip, unsigned long parent_ip,
goto out;
cpu = smp_processor_id();
data = tr->data[cpu];
data = per_cpu_ptr(tr->data, cpu);
if (!atomic_read(&data->disabled)) {
local_save_flags(flags);
trace_function(tr, ip, parent_ip, flags, pc);
@@ -107,7 +107,7 @@ function_stack_trace_call(unsigned long ip, unsigned long parent_ip,
*/
local_irq_save(flags);
cpu = raw_smp_processor_id();
data = tr->data[cpu];
data = per_cpu_ptr(tr->data, cpu);
disabled = atomic_inc_return(&data->disabled);
if (likely(disabled == 1)) {